<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="form3.jsp" enctype="multipart/form-data" method="post">
用户名：<input type="text" name="username"/><br/>
上传文件：<input type="file" name="file1"/><b/>
<input type="submit" value="提交"/>
</form>
</body>
</html>